13151405225 has 36 divisors (see below), whose sum is σ = 19017337500. Its totient is φ = 8995714560.

The previous prime is 13151405149. The next prime is 13151405291. The reversal of 13151405225 is 52250415131.

It can be written as a sum of positive squares in 6 ways, for example, as 774620224 + 12376785001 = 27832^2 + 111251^2 .

It is not a de Polignac number, because 13151405225 - 2²⁰ = 13150356649 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 487901 + ... + 514149.

It is an arithmetic number, because the mean of its divisors is an integer number (528259375).

Almost surely, 2^13151405225 is an apocalyptic number.

It is an amenable number.

13151405225 is a deficient number, since it is larger than the sum of its proper divisors (5865932275).

13151405225 is a wasteful number, since it uses less digits than its factorization.

13151405225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26682 (or 26670 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 29.

The spelling of 13151405225 in words is "thirteen billion, one hundred fifty-one million, four hundred five thousand, two hundred twenty-five".